Applied AI Engineer

About this role

Zello seeks an Applied AI Engineer to build and ship production AI agents end-to-end, from prototype through deployment and ongoing optimization. You'll own the full lifecycle of AI tools integrated with Zello's systems, managing quality, monitoring performance, and driving continuous improvement for a voice-first communication platform serving 175+ million users.

What you'll do

• Develop production-grade AI agents and automations integrated with LLM APIs and Zello's existing systems (Slack, Jira, HubSpot, Snowflake)
• Write and maintain production Python code for prompt construction, response handling, and tool-use patterns
• Build evaluation harnesses with automated quality scoring and regression detection for deployed agents
• Monitor agent performance in production, triage failures, and implement improvements based on real usage data
• Manage human reinforcement workflows and feedback loops to tune agent behavior
• Create reusable code patterns, component libraries, and documentation to accelerate future development

What they're looking for

• Production Python development
• LLM API integration and prompt engineering
• System integration via APIs (authentication, rate limiting, error handling)
• Software architecture and system design
• Testing and monitoring practices
• Data integration with analytics platforms
• Problem decomposition and abstraction thinking
• Operational ownership and post-deployment maintenance